Fix link in new typescript docs

While reading the new typescript docs introduced in #6120, I noticed this link points to a fork. This commit changes it to a relative link so it should work everywhere.

Author: maxjacobson

src/content/learn/typescript.md

@@ -20,7 +20,7 @@ TypeScript is a popular way to add type definitions to JavaScript codebases. Out
 
 ## Installation {/*installation*/}
 
-All [production-grade React frameworks](https://react-dev-git-fork-orta-typescriptpage-fbopensource.vercel.app/learn/start-a-new-react-project#production-grade-react-frameworks) offer support for using TypeScript. Follow the framework specific guide for installation:
+All [production-grade React frameworks](/learn/start-a-new-react-project#production-grade-react-frameworks) offer support for using TypeScript. Follow the framework specific guide for installation:
 
 - [Next.js](https://nextjs.org/docs/pages/building-your-application/configuring/typescript)
 - [Remix](https://remix.run/docs/en/1.19.2/guides/typescript)
@@ -460,4 +460,4 @@ We recommend the following resources:
 
  - [React TypeScript Cheatsheet](https://react-typescript-cheatsheet.netlify.app/) is a community-maintained cheatsheet for using TypeScript with React, covering a lot of useful edge cases and providing more breadth than this document.
 
- - [TypeScript Community Discord](discord.com/invite/typescript) is a great place to ask questions and get help with TypeScript and React issues.
+ - [TypeScript Community Discord](discord.com/invite/typescript) is a great place to ask questions and get help with TypeScript and React issues.